421102366 has 4 divisors (see below), whose sum is σ = 631653552. Its totient is φ = 210551182.

The previous prime is 421102361. The next prime is 421102369. The reversal of 421102366 is 663201124.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 421102366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421102361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105275590 + ... + 105275593.

It is an arithmetic number, because the mean of its divisors is an integer number (157913388).

Almost surely, 2^421102366 is an apocalyptic number.

421102366 is a deficient number, since it is larger than the sum of its proper divisors (210551186).

421102366 is a wasteful number, since it uses less digits than its factorization.

421102366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210551185.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 421102366 is about 20520.7788838533. The cubic root of 421102366 is about 749.5418630191.

The spelling of 421102366 in words is "four hundred twenty-one million, one hundred two thousand, three hundred sixty-six".